We are offering n, n'-carbonyldiimidazole. 1, 1'-carbonyldiimidazole (cdi) is an organic compound with the molecular formula (c3h3n2)2co. It is a white crystalline solid. It is often used for the coupling of amino acids for peptide synthesis and as a reagent in organic synthesis. • cas number 530-62-1 • empirical formula c7h6n4o • molecular weight 162.15 • beilstein registry number 6826 • ec number 208-488-9 • pubchem substance id 24847221 properties related categories carbonyldiimidazole derivatives, chemical biology, chemical synthesis, coupling, peptide chemistry, quality level premium grade reagent grade mp 117-122 °c(lit.) nicotinamide, also known as niacinamide and nicotinic amide, is the amide of nicotinic acid. Nicotinamide is a water-soluble vitamin and is part of the vitamin b group • formula: c6h6n2o • melting point: 128 °c • molar mass: 122.12 gmol • iupac id: pyridine-3-carboxamide • soluble in: water